To "Watch Superbad" is to lay down hold your girlfriend and tell her how much you love her. Possibly with a bit of boob holding but mostly kissing her and telling her she means the world to you and that your life is so much better with her.
Hey babe you wanna "Watch Superbad"?
April 24: The Person (usually female, but sometimes men) with breasts would send their significant other a picture of their breasts.